REPORT ON THE CEPHALOPODA. 



151 



Family IX. Loliginei, Steenstrup. 

 Sepioteuthis, Blainville. 



Sepioteuthis lessoniana, Ferussac. 



1825. Sepioteuthis lessoniana, d'Orb., Tabl. mdth., p. 155 (nomen tantum). 



1830. „ „ Lesson, Voy., " Coquille," Moll., p. 241, pL xi. 



1839. „ „ d'Orb., C(^ph. acet., p. 301, S^pioteuthes, pis. i. vi. figs. 9-14. 



1849. „ „ Gray, Brit. Mus. Cat., p. 80. 



1886. „ ,, Appellof, Japanska Ceph., p. 31. 



Habitat. — From the surface of the harbour, Kandavu, Fiji, August 1874. One 



specimen, $ . 



Ternate, October 15 to 17, 1874. One specimen, $ . (Presented by the Resident.) 

 New Guinea, Java, Cape Fabre, Trincomalee (d'Orbigny) ; New Zealand (Gray) ; 



Japan (Appellof). 



Both the Challenger specimens agree so well with d'Orbigny's description that I have 

 no hesitation in referring them to this species. The individual from Ternate being the 

 largest that has come under my notice, I append its dimensions. 



Dimensions 











Length, total, . , . . . . . .570 mm. 



End of body to mantle-margin. 









, 195 „ 



End of body to eye, 









. 515 



, 



Breadth of body, . 









85 



, 



Breadth of head, ... 









50 



, 



Eye to edge of umbrella, . 









33 



, 



Breadth of fin, , . , . 









45 



, 



Length of hectocotylus, . 









27 



, 



Diameter of largest sucker on sessile arm. 









4-5 



, 



Diameter of largest sucker on tentacle, 









5-5 



> 



Right. Left. 



Length of first arm, . . - . . . .70 mm. 6(5 mm 



Length of second arm, 









85 „ 80 „ 



Length of third arm. 









90 „ 98 „ 



Length of fourth arm. 









95 „ 100 „ 



Length of tentacle. 









320 „ 



335 „ 



The hectocotylisation is of the type common in this genus and Loligo ; it occupies the 

 distal fourth of the arm ; the suckers diminish in size and their peduncles become large 

 swollen cones, and eventually these entirely replace the suckers* 



